\chapter{反三角函数和简单三角方程}

\section{反三角函数}

\input{units/chapter-1-1}
\input{units/chapter-1-2}
\input{units/chapter-1-3}
\input{units/xiti-1}

\newpage
\section{简单三角方程}
\input{units/chapter-1-4}
\input{units/chapter-1-5}
\input{units/chapter-1-6}
\input{units/xiti-2}

\vspace{5em}
\input{units/chapter-1-xiaojie}

\nonumsection{复习参考题一}
\input{units/ds2-ch1-fuxi-A.tex}
\input{units/ds2-ch1-fuxi-B.tex}

